sejerborg.dk

📜 Historical scan 2026-10-01 06:13:26  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejerborg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 September 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.176 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   31ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   53ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.111.240.176 3600s webcluster49.webpod11-cph3.one.com AS51468 One.com A/S 77.111.240.0/22 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover77.111.240.176
🔶 Autoconfig77.111.240.176

🔷 AAAA Records (IPv6)#

1 records   34ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:102:8086:4ae1:d0e5:3ba2 3600s — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   228ms
TXT Record
google-site-verification=3kenp3YmcjQgJCOFNnvfYiGNJwszRSlyA0frq2HYwfM

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

PolicyRecord (_dmarc.sejerborg.dk)
p=none (monitor only) v=DMARC1; p=none;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 11:20:47
www77.111.240.176 2a02:2350:5:102:8086:4ae1:d0e5:3ba2 (AS51468) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

4 records   104ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 24F573980561755185B794745411B05D…

🔐 DNSSEC#

61ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

57ms
FieldValue
Serial2026082205
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-07 11:38:44
FieldValue
RegistrarPunktum dk A/S (direct)
Registered1999-09-27
Expires2027-09-30 (347d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
31ms
A
53ms
MX
47ms
AAAA
34ms
TXT
228ms
CAA
43ms
HTTPS
40ms
TLSA
104ms
SOA
57ms
MTA-STS
55ms
DNSSEC
61ms
SRV
59ms
Total
759ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 11:17:00 2251ms 2 NS 1 A 4 MX 🔒 Secure
2026-10-01 06:13:26 shown 759ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-27 14:47:49 962ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-23 18:33:12 2718ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-22 12:51:11 6174ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-14 16:06:16 2862ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-27 05:46:29 1921ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-26 09:08:50 737ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-24 15:18:30 5362ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-22 23:46:51 1150ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 02:35:28 1333ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-17 12:11:41 671ms 2 NS 1 A 4 MX 🔒 Secure
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